249724422 has 24 divisors (see below), whose sum is σ = 545024376. Its totient is φ = 82633056.

The previous prime is 249724381. The next prime is 249724439. The reversal of 249724422 is 224427942.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48168 + ... + 53099.

It is an arithmetic number, because the mean of its divisors is an integer number (22709349).

Almost surely, 2^249724422 is an apocalyptic number.

249724422 is an abundant number, since it is smaller than the sum of its proper divisors (295299954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249724422 is a wasteful number, since it uses less digits than its factorization.

249724422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101412 (or 101409 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 249724422 is about 15802.6713564511. The cubic root of 249724422 is about 629.7289688288.

The spelling of 249724422 in words is "two hundred forty-nine million, seven hundred twenty-four thousand, four hundred twenty-two".